I'm super late to the game on this, as I've not considered adding custom attributes in the past. Also, we've only upgraded to SAS 9.4 recently, so the xattr statement wouldn't have helped me before anyway. But now that I have 9.4 and I had a desire to customize some metadata for some datasets, here I am on yet another of your spectacularly informative blog postings. Wow! I'm so glad the developers decided to add this feature. Thanks, Chris, for keeping us SAS users well informed, even years down the road.